A report by the National Health Performance Authority shows 93 per cent of Tasmanian children are immunised by age one, 94 per cent by age two and 91 per cent by the time they are five.

The report has found more than 70,000 Australian children are not fully immunised.

Susan Powell from Tasmania Medicare Local has welcomed the data.

"It assists us to track how we're going and it helps us to work in our ongoing efforts with providers about the ongoing programs and education and resources that we need to make sure are available for people who are providing immunisation," she said.